Cannot sample enough valid points. (more)

\[0.0 \lt a \lt b + c \land 0.0 \lt b \lt a + c \land 0.0 \lt c \lt a + b\]
\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]
\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}
double f(double a, double b, double c) {
        double r85639 = a;
        double r85640 = b;
        double r85641 = r85639 + r85640;
        double r85642 = c;
        double r85643 = r85641 + r85642;
        double r85644 = 2.0;
        double r85645 = r85643 / r85644;
        double r85646 = r85645 - r85639;
        double r85647 = r85645 * r85646;
        double r85648 = r85645 - r85640;
        double r85649 = r85647 * r85648;
        double r85650 = r85645 - r85642;
        double r85651 = r85649 * r85650;
        double r85652 = sqrt(r85651);
        return r85652;
}